1. United Nations World Tourism Organization. 2008. Available at: http://www.unwto.org/index.php. (Accessed 2008 Feb 9)
2. Steffen R , DuPont H , Wilder‐Smith A , eds. Manual of travel medicine and health.2nd Ed. Hamilton, Canada: BC Decker, 2003.
3. Prociv P . Deaths of Australian travellers overseas. Med J Aust 1995; 163:27–30.
4. Overseas fatalities of United States citizen travelers: An analysis of deaths related to international travel
5. Baker TD Hargarten SW Guptill KS . The uncounted dead—American civilians dying overseas. Public Health Rep 1992; 107:155–159.